grinsfem/grins — pull request #182 by tradowsk (2014-12-19 20:34:53+00:00)
Title: Jacobians

Implementation of analytical Jacobians for low_mach_navier_stokes.C based on residuals already implemented therein. Documentation of derivation will be added soon, once cleaned up and verified.

Created an example problem, cavity_benchmark_no_stab, to test in 3D. Tolerance for comparison between analytical and numerical Jacobians set to 5.0e-6, stabilization is not included. Example creates a convection cell between 2 opposing walls, and has a parabolic velocity BC on the top to make it more interesting.